Canning-press



(No Model.)

L. HAMLIN.

GANNING PRESS. No. 275,906. I Patented Apr. 17, 1883.

WITNESSES; INVENTORS M- I ATTORNEYS.

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UNITED STATES PATENT QFFICE.

LUGIUS HAMLIN, on SEBAGO LAKE, MAINE.

CANNING-PRE SS.

SPECIFICATION forming part of Letters Patent No. 275,906, dated April 17, 1883. Application filed February 7, 1883. (No model.)

To all whom it may concern Be it known that I, LUCIUS HAMLIN, of Sebago Lake, Cumberland county, Maine, have invented a new and Improved Canning-Press, of which the following is afull, clear, and exact description.

My invention consists of apress with contrivances to facilitate the filling of cans with food substances, and a follower to pack the same into the cans, which is operated by a pneumatic vacuum device for applying the power, the vacuum being produced by a steamejector, with which there is an automatic stop device designed for certainty of action when the predetermined pressure has been applied.

The machine is intended for use in the large canning-factories employing steam-power, and therefore having steam available for working the press, all as hereinafter fully described.

Reference is to be had to the accompanying drawings, forming apart of this specification, in which similar letters of reference. indicate corresponding parts in both figures.

Figure 1 is a perspective view of my improved canning-press, and Fig. 2 is a section of the steam-ejector employed for operating the vacuum device.

It represents a little hopper located on the bed-frame I), at one side of the machine, and having a hole, 0, at the bottom, from which a tube extends a short distance below, under which the cans are to be placed to be filled. Over the hole is a press-follower, (1, adapted to press the substances charged into the filler 0 from the hopper a into the cans, said follower being attached to the cross-head e, which is connected to the toggle-barsf and g, to be worked up and down the ways h, one of said toggle-bars being suspended from the top plate, @',of the frame,and connected by a rod, 7', with a lever, k, that has a fulcrum at l, and is connected by the rod m with the diaphragm n of the pneumatic vacuum-press 0, which is exhausted by the steam-ejector p when the follower is to be forced down. The spring q returns the diaphragm and raises the follower when the steam is shut ofi. The throttle s of the steam-pipe to the ejectoris connected by a rod, t, with a hand-lever, u, by which the attachment opens the valve to set the ejector at work when the can is ready to be packed, and a bar, to, is connected with the rod tin suitable position for lever is to collide with it and close valve 8 at the moment that the follower has packed the can properly.

A piston may be employed in the cylinder of the vacuum-press, if preferred but the diaphragm is believed to be the best.

It will be seen that the press is a simple contrivance, well adapted for rapid and eflicicnt work, and that it is particularly useful for this kind of service in consequence of the automatic stop device, which secures uniformity in the packing of the cans. The toggle-bar contrivance also favors the work by aftbrdingthe greatestpressure when the greatest resistance exists. The matters to be packed are to be fed into the tiller by hand.

Both the steam-snpply and air-exhaust pipes may be fitted with suitable valves, ac, to control the action of the apparatus as desired.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. The combination of the vacuum-press o and steam-ejector p with the press-follower (I, said "acuum press being connected to the cross-head of the follower by the toggle-bars, connecting-rods, and lever'k, substantially as described.

'2. The combination with the press;follower connected to the vacuum-press 0,substantially as described, ot the steam-ejector 12, valve 8, and the hand-leveru,substantially as specified.

3. The stop-bar 'w, in combination with the valve-rod t, lever k, and the press-follower and vacuum-press 0, connected substantially as described.

4. The combination of the press-follower, toggle-bars f g, connecting-rodsj m, vacuumpress 0, lever k, and the reacting spring q, substantially as described.

LUGIUS HAMLIN.

Witnesses:

A. G. DEWEY, HENRY W. SwAsEY, NATHAN themes. 

